CF MOTO CF500-5B 2009, Service Manual, Page: 272 / 272

13 - 24
CFMOTO
Overhaul "
Ref no Operation Test result Next Steps
yes repair
1
Check the faults if exist clutch skid, low tyre
pressure, lagged brake, improper tyre size etc . no next
yes
Examine and repair air
input system 2 Check air cleaner if is clogged.
no next
yes next
3
Contact fuel pressure meter(contact front point of
oil input pipe of injector), starting engine, check the
fuel pressure whether is around 300kPa or not
no
examine and repair oil
support system
yes next
4
Pull out ignition coil, and contact with spark plug,
keep pole of spark plug 5mm away with body of
engine, starting engine and check the high
pressure fire whether is normal or not.
no
examine and repair
ignition system
yes next
5
Check spark plug, look its type and gap if accords
with standard.
no Adjust or replace
yes Clean related parts
6
Disassembly idle speed valve and check the throttle
valve body, idle speed valve and idle speed side air
duct whether have carbide accumulated or not.
no next
yes next
7
Check air intake pressure sensor, throttle position
sensor and their wiring if works regularly.
no
examine and repair
wiring or replace sensor
yes Fault replacement
8
Disassembly injector, and check the injector by
special washing analysis instrument if exists the
phenomena of leaks and clogs.
no next
Yes Replace fuel
9
Check fuel and observe the fault if caused after
fueling
no next
yes next
10
Check engine ignition timing if accords with
standard.
no
examine and repair
ignition timing
yes next
11
Check the exhaust gas from muffler if exhausts
smoothly
no
Repair or replace
muffler
yes Diagnosis help
12
Contact with EFI commutator, open ignition switch,
check ECU5#
#
10#
#
23# stitch, the power whether
supply normal or not, check 2#
#
21# stitch whether
is puting up iron or not.
no
Examine and repair
relevant wiring